From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lj1-f174.google.com (mail-lj1-f174.google.com [209.85.208.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 968002CA0 for ; Fri, 28 Jan 2022 19:37:33 +0000 (UTC) Received: by mail-lj1-f174.google.com with SMTP id t7so10439999ljc.10 for ; Fri, 28 Jan 2022 11:37:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=aiENhwM8k5s4CI1T29f+7g3ngGtWKHx/bWX81I/XFuo=; b=VsehauSzbNf0n6Z/JkRnEEIXEmu5fPVfxgn01c1ll5kYNgwjlRcLEloqB4fUIcPxJt GdWfe/XgkyzNkttXaf4aRo4s7sUlgvNyt69j5WJbMbArnqwuf1BUpEMr8TlmjgDNGybx GPHmkyvIebgiAMcnbQPPsSM5jTsT7eb7SPBjnj0l58rV9Gv/qWKq+N4WB2sBRVWlnN+e mI/b+m/izcdyzR9uwE/UxKgQIY2cJRrPxoP9E2aglmiokMSP32rwDDmwCMlpniTOG9bO krI+E0b+sC7vs+YUAjpzDr1AQccTFkvb2PGASdFJcSplJN0FxuH5cvMj8AtcuzZQdoyc O6Gw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=aiENhwM8k5s4CI1T29f+7g3ngGtWKHx/bWX81I/XFuo=; b=txkE70CdUck3cwiOsphAp+jL1XbAZWWXhImdiQWjKI+4HJf6W0rELCMCyPyWqnuRpY fh+XLajfpyDCrvWPIPw/WRIYOEuvk84JwEYCe211oLcvfcO7JqTh8/hWnA2xTjum6EMI MTLH+rx4wpN+f8fqY5majGNQ6NJfSP5/4EOB17iPoQeVtVsTTOgCKpkiVYmeFQTOavjV 5byDAZHkkgGH2zGl9u4+ZvNS3c/4HtXKEkqrQ5PpzP6UpYk0s0npglCzwNPMAvqnwBxo lmzXYXLrI0ZiRaohrtsoDL2Cnz0ghN6gxLIzu2h+efKwpQ7Myb6UMnDj7ztkz1OQYotg 0xUQ== X-Gm-Message-State: AOAM531KaJ17QMBg7/i8KNKTX6FpghPjEonSOaOqFVrd0c47VpEtOqEC zHjAOmpKRsCfGECSzpIZV5M= X-Google-Smtp-Source: ABdhPJwrjMI4ZpB5Ov1Fk2wbeI8iclUzrmf1/QctXusS4SbUXC0q/1kcZ3akLOrdfD9K15D7hbd1+A== X-Received: by 2002:a2e:a594:: with SMTP id m20mr6552416ljp.491.1643398651584; Fri, 28 Jan 2022 11:37:31 -0800 (PST) Received: from [192.168.1.103] ([178.176.74.103]) by smtp.gmail.com with ESMTPSA id d15sm359077lft.202.2022.01.28.11.37.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Jan 2022 11:37:30 -0800 (PST) Subject: Re: [PATCH 4/7] mfd: hi6421-spmi-pmic: Use generic_handle_irq_safe(). To: Lee Jones Cc: Sebastian Andrzej Siewior , greybus-dev@lists.linaro.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, linux-usb@vger.kernel.org, netdev@vger.kernel.org, "David S. Miller" , Alex Elder , Arnd Bergmann , Greg Kroah-Hartman , Hans de Goede , Jakub Kicinski , Johan Hovold , Rui Miguel Silva , Thomas Gleixner , UNGLinuxDriver@microchip.com, Wolfram Sang , Woojung Huh References: <20220127113303.3012207-1-bigeasy@linutronix.de> <20220127113303.3012207-5-bigeasy@linutronix.de> <44b42c37-67a4-1d20-e2ff-563d4f9bfae2@gmail.com> From: Sergei Shtylyov Message-ID: <42d216c4-abf2-7937-1a99-0aecc4ef2222@gmail.com> Date: Fri, 28 Jan 2022 22:37:28 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit On 1/28/22 7:50 PM, Lee Jones wrote: [...] >>>>> generic_handle_irq() is invoked from a regular interrupt service >>>>> routing. This handler will become a forced-threaded handler on >>>> >>>> s/routing/routine/? >>>> >>>>> PREEMPT_RT and will be invoked with enabled interrupts. The >>>>> generic_handle_irq() must be invoked with disabled interrupts in order >>>>> to avoid deadlocks. >>>>> >>>>> Instead of manually disabling interrupts before invoking use >>>>> generic_handle_irq() which can be invoked with enabled and disabled >>>>> interrupts. >>>>> >>>>> Signed-off-by: Sebastian Andrzej Siewior >>>> [...] >>>> >>>> MBR, Sergey >>> >>> What does that mean? >> >> Ah, you were asking about MBR! My best regards then. :-) > > Yes this. It's okay, Dan was kind enough to enlighten me. > > Every day is a school day on the list! :) It's not exactly a well known phrase, I like it mainly because it also stands for the Master Boot Record. :-) MBR, Sergey